Yelp, the online review website used by millions of New Yorkers and tourists to navigate the Big Apple, is finalizing a 140,000-square-foot office in the city, The Real Deal has learned. The company is in advanced discussions with the Sapir Organization and CIM Group to take the entire 14th and 16th floors of the 30-story tower at 11 Madison Avenue, located between 24th and 25th streets.

Yelp, which is headquartered in San Francisco and has a market cap of more than $4 billion, also occupies about 70,000 square feet at Clarion Partners’ 100-104 Fifth Avenue in Union Square. It started off with just shy of 10,000 square feet at that location three years ago, but has since expanded several times.